What is the derivative of f(x)=-21x-3 ?

The derivative of f(x)=-21x-3 is -21

What is the first derivative of f(x)=-21x-3 ?

The first derivative of f(x)=-21x-3 is -21

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derivative of

f (x) = - 21 x - 3

- 21

Solution steps

\frac{d}{d x} (- 21 x - 3)

Apply the Sum/Difference Rule:

(f \pm g)^{'} = f^{'} \pm g^{'}

= - \frac{d}{d x} (21 x) - \frac{d}{d x} (3)

\frac{d}{d x} (21 x) = 21

\frac{d}{d x} (3) = 0

= - 21 - 0

Simplify

= - 21

What is the derivative of f(x)=-21x-3 ?
The derivative of f(x)=-21x-3 is -21
What is the first derivative of f(x)=-21x-3 ?
The first derivative of f(x)=-21x-3 is -21